A.對(duì)樣本回歸函數(shù)的參數(shù)進(jìn)行估計(jì)B.對(duì)回歸結(jié)果進(jìn)行具體解釋C.對(duì)根據(jù)樣本得到的估計(jì)進(jìn)行檢驗(yàn)D.根據(jù)利用檢驗(yàn)結(jié)論進(jìn)行預(yù)測(cè)分析
A.1-((Yt-Y^t)2/(n-1))/((Yt-Yt)2/(n-k))B.1-(1-R2)*(n-1)/(n-k)C.1-(1-R2)*(n-k)/(n-1)D.1-(1+R2)*(n-k)/(n-1)
A.var(ui∣X1i,X2i)=AB.X1i,X2i之間存在線性關(guān)系C.E(ui∣Xji)=0,(j=1,2)D.cov(ui,uj)=0,j≠i)